It was found that the AJP connector in undertow, as shipped in Jboss EAP 7.1.0.GA, does not use the ALLOW_ENCODED_SLASH option and thus allow the the slash / anti-slash characters encoded in the url which may lead to path traversal and result in the information disclosure of arbitrary local files.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Link | Tags |
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https://access.redhat.com/errata/RHSA-2018:0479 | vendor advisory |
https://access.redhat.com/errata/RHSA-2018:0481 | vendor advisory |
https://access.redhat.com/errata/RHSA-2018:0480 | vendor advisory |
https://access.redhat.com/errata/RHSA-2018:0478 | vendor advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=1534343 | issue tracking vendor advisory |